If the human race gets to 5-6C of warming, the entire outside will have about 1000ppm of CO2. At 4C, about 800ppm outside, perhaps by 2100. https://www.co2.eart

If the human race gets to 5-6C of warming, the entire outside will have about 1000ppm of CO2. At 4C, about 800ppm outside, perhaps by 2100. https://www.co2.earth/2100-projections https://www.co2.earth/2100-projections My kids may well see stuffy room CO2 levels outside within their lifetimes.